Impulse and rotary stem winding and setting watch.



A. PLEAN. IMPULSE AND ROTARY STEM WINDING AND SETTING WATCH.

APPLICATION FILED MAY 22, 1913.

Patented De0.2,1913.

2 SHEETS-SHEET 1.

[N VEN T 01? W NESSES Z Allorny COLUMH1A:PLANOURAPH CD. WASHINGTON, D. C.

A.- PLEAN. IMPULSE AND ROTARY STEM WINDING AND SETTING WATCH.

APPLIOATION FILED MAY 22 1 913.

Patented Dec. 2, 1913.

2 SHEETS-SHEET 2.

WITNESSES UNITED STATES PATENT OFFICE.

ABRAHAM PLEAN, OF NEW YORK, N. Y.

IMPULSE AND ROTARY STEM WINDING AND SETTING WATCH.

To all whom it may concern Be it known that I, ABRAHAM PLEAN, a subject of the Czar of Russia, and residing in the borough of Brooklyn, in the city of New York, in the county of Kings and State of New York, have invented certain new and useful Improvements in Impulse and Rotary Stem WVinding and Setting Watches, whereof the following is a specification.

This invention relates to watches in which both the winding and setting is effected through the stem.

1 have heretofore obtained a Patent No. 939,081 dated November 2, 1909 for a winding mechanism for watches in which the winding is effected by a reciprocating push motion or impulse in lieu of a rotary motion of the crown and stem and I have also obtained a Patent No. 939,082 dated November 2, 1909 for a setting mechanism for watches which is separate and distinct from the winding mechanism and operated by a yielding thumb wheel which projects through a slot in the case.

The object of this invention is to provide a stem winding and setting watch in which the winding operation is effected by a push motion of the crown and the setting by a rotary motion thereof.

Another object of the invention is to adapt the reciprocating push motion winder and setter to a thin watch.

One advantage of the push winder is that the winding mechanism is practically operative single handed, that is to say the watch may be conveniently wound while held in one hand without assistance from the other. Another advantage is that the machanism is simple in construction and composed of few parts and therefore economical to make.

Figure 1 of the accompanying drawings represents on a scale two times enlarged (to be reduced one-third in the patent drawings) a front view partly in section and with parts broken out of my preferred embodiment of this invention. Fig. 2 represents on a scale five times enlarged (one-third reduced in the patent drawings) a radial section through a portion of the body of the watch and a portion of the pendent on line 22 of Fig. 1. Fig. 3 represents on the same scale a transverse section of the pendent and stem on line 3-3 of Fig. 1. Fig. 1 represents on the same scale an irregular partly radial transverse section on line -1- A;

Specification of Letters Patent.

Application filed May 22, 1913.

Patented Dec. 2, 1913.

erial No. 769,198.

of Fig. 1 looking toward the setting train. Fig. 5 represents on the same enlarged scale a transverse section on line 5-5 of Fig. 1 looking toward the winding train. Fig. 6 represents a perspective view of the sliding yoke for transmitting the push motion or the crown to the winding train. Fig. 7 represents on the same enlarged scale the actuating mechanism of the stem in gear with the setting mechanism.

The same reference characters indicate corresponding parts throughout the differ ent figures, round numbers being generally used for the principal elements and intermediate numbers for the subordinate features thereof.

This invention may be embodied in or applied to watches of various types. In the form of embodiment herein illustrated, merely as an example, the improvements are shown in connection with a well known type of American watch movement and the description will include such parts thereof only as may be necessary to an understanding of the improvements by those skilled in the art of watch making.

The watch case which incloses the time movement or works comprises in its preferred form an annular body or ring 10 having threaded outer peripheral rabbets 11 and 12 and inner ledges 13 and 14, a bezel 15 threaded to the rabbet 11 and carrying the crystal 16 and back cover 17 threaded to the rabbet 12. These threaded connections of the face and back covers make tight joints and prevent access of dust to the interior of the case. The body 10 of the case is provided with a hollow pendent 20 provided with exterior longitudinal grooves 21 and 22 and an interior thread 23 in its outer end for the purpose hereinafter explained.

The time mechanism or movement is car ried by a sunken top plate 30 and a bottom plate 35. The sunken top plate 30 is provided with a raised angular rim 31 which engages the inner ledge 13 of the ring 10. The bottom plate 35 sets in the ledge 14c of said ring flush with the bottom face thereof. A dial 10 sets over the raised rim of the top plate 80 flush with the top face of the ring 10 and a chamber 3% is formed between the dial and top plate for the dial train and other mechanisms. An ordinary time mechanism or movement is shown, comprising a going barrel 50, a barrel arbor 51, a main spring 52 secured to said arbor and barrel, a going wheel 53, a main winding wheel 541 secured to the barrel arbor, and a check pawl pivoted at 50 and provided with a spring 57 for controlling the winding wheel A pawl and ratchet transmitting mechanism is used for actuating the winding wheel 51- as in my former stem winding patent above mentioned. A driving gear wheel 60 turns on the fixed boss 61 and meshes with said winding wheel. An oscillating plate 65 is loose on the boss 61 above the driving gear wheel 60 and carries on its under side a driving pawl 66 which engages the teeth of said wheel, being actuated by a spring 67. The wheel 60 thus acts as a driving or transmitting gear and as a ratchet wheel. A flange 62 on the boss 61 sets in a recess or rabbet 68 of the oscillating plate 05 and holds the latter in operative position. The plate 05 is provided with a circular peripheral slot 69 open at one side. A link 70 connects the driving gear wheel 60 with the im pulse and rotary stem winding and setting mechanism hereinafter described. This link is preferably in the same plane with the plate 65 so as to secure compactness of struc ture and thinness of the watch. The link is provided at its inner end with a rounded enlargement or trunnion 71 which fits and turns in the circular slot 09, whereby the pivotal connection between the link and plate is made flush with the latter. The link has a recess 72 on one side and the plate 65 is truncated at 63 adjacent to said recess to avoid interference on the inward thrust of the link. This truncation and recess enable the use of a straight link in place of the curved link of my former patent.

The hands and dial train may be of any suitable construction. As shown an ordinary central arbor actuatable by any suitable time mechanism carries the minute hand 81 and an ordinary hour hand sleeve 82 disposed on said arbor carries the hour hand 83. The dial or setting train comprises as usual a pinion S 1 indicated by dotted lines on Fig. 1, fixed on the arbor 80, a gear wheel 85 disposed in bearings adjacent to said arbor and meshing with the pinion 81-, a pinion 86 fixed on the hub of the gear wheel 85 and meshing with the gear wheel 87 fixed on the hour hand sleeve 83 and a gear wheel 88 constituting the outer member of the dial train meshing with the gear wheel 85.

An approximately radial shaft 90 is disposed in bearings 32 and 33 secured to the underside of the top plate 30. This shaft is provided near its inner end with a crown wheel 91 which meshes with the outer member 88 of the dial train aforesaid, and near its outer end with a gear wheel 92.

The stem mechanism connected with the link 70 for windin b im ulse or )ush mo-' tions and connectible with the gear wheel 88 for setting by rotary motion, will now be described.

A. knob slides on the pendent 15 and carries the bow 105. This sliding knob is held on the pendent by inward projections 101 and 102 in the form of screws or otherwise, which engage the longitudinal grooves 21 and 22, said grooves forming guides for said projections. The sliding knob has lateral sockets 103 and 10a in which the bow swings. An annular recess 106 is formed in the top of the knob and the outer wall of said recess is cut down on both sides between the sockets as indicated by the downwardly curved dotted line in Fig. 1. This hollow knob also has an opening 107 in its top.

A slidable rotary crown 110 carries the winding and setting stem and slides in and out under a push and spring for winding and after proper adjustment rotates for setting. This crown has a downward annular flange 111 which plays in the annular recess 106 and a central internally threaded hub 112 which plays in the opening 107. The stem 115 has at its upper end a threaded tang 116 which engages the hub 112. This stem extends downward from said rotary crown through the hollow knob 100 and through the hollow pendent 15 and has an angular extension 117 which projects within the case 10. The stem 115 is provided just above said angular extension with a rounded. bead 11S and above said rounded head with an angular bead 119 and between said beads with an annular groove 119. A threaded ring 120 fits the threaded interior of the pendent 15 and is provided with dependent spring gripping aws 121 which spring over the angular bead and engage the groove 119 when the stem 115 is thrown outward by a pull on the crown 110.

A radial rotary slide shaft 125 constitutes an extension of the stem 115. This slide shaft is supported and guided in guideways 120 and 127, the former being secured to the under side of the plate 30 at the periphery thereof and the latter being secured to the upper side of the sunken body of said plate and dependent through an opening 3% therein. The upper end of this shaft 125 is enlarged and constitutes an angular socket 128 which is engaged by the angular extension 11'? of the stem 115 as clearly shown in Figs. 1, 2 and 7. This slide shaft is provided just below the socket enlargement with a small fixed gear wheel 129.

A slide 130 is movable on the face of the sunken plate 30 and spans the opening 31 therein. This slide is pivotally connected at one end to the link 70 and a spring 1&0, secured at its lower end to said plate, bears at its upper end on the opposite end of said slide 130. This slide is provided with a rearward fixed lug 131 having a hole 132 through which the sliding shaft 125 passes. The shaft 125 has a shoulder or projection which engages the lug 131 when the stem is pushed and depresses the sliding plate. In the form shown, the lug 131 is directly beneath the gear wheel 129 and the latter serves as the pushing shoulder or projection aforesaid. The slide 130 has a slot 183 in its face to escape contact with the gear wheel 129. In the form shown the lug is not integral with the slide but in a separate piece secured thereto. As Shown the lug is provided with a tang 134 which projects through the slot 133 in the slide 130 and is secured by pins 135 and 136 which project through said tang and lie against the front face of the plate 130. The spring 140 forces the slide 130 in outward direction after each inward winding push of the stem and also forces, through said slide and its lug 131 in contact with the gear wheel 129, the radial slide shaft 125 in outward direction when the crown and its stein are pulled out for setting, such outward movement of the slide shaft 125 bringing the gear wheel 129 into mesh with the gear wheel 92 of the shaft 90 and establishing connection with the dial train.

The operation will now be described.

In normal position the parts are as shown in Fig. 1, the setting gear being disengaged. In the operation of winding by means of this winding and setting mechanism the watch may be held in one hand and a pressure by one finger or the thumb of the same hand upon the crown or push button 110 pushes said crown into contact with the tubular knob 100 and causes the latter to slide downward on the pendent 15. This movement or joint movement of the crown or push button constitutes one stroke or impulse and depresses the stem 115 and its extension 125 inward toward the center of the watch. The gear wheel 129 resting against the lug 131 serves as a pusher for the slide 130 moving the latter toward the center of the watch and imparting an inward thrust to the link which turns the oscillating plate 65 a partial rotation on its axis. The pawl 66 disposed on this oscillating plate and engaging the ratchet gear wheel 60 turns the latter the distance of five or six teeth more or less. This gear wheel 60 being in engagement with the main Winding wheel 54: of the barrel arbor 51 turns said winding wheel, whereby said arbor is actuated and the main spring 52 correspondingly wound. hen the instroke of the stem is completed, the crown is released by the finger or thumb and the outstroke of the stem is effected by the spring 140, which restores the winding mechanism to normal position as shown in Fig. 1. The pawl 66 rides freely over the teeth of the wheel 60 during said outstroke, said wheel remaining stationary, being locked by its 65 engagement with the main winding wheel 54 held by the check pawl 55. The crown 110 is thus operated after the manner of a push button a sufficient number of times to complete the winding up of the watch. The sliding push stem is more sensitive to the resistance of the spring being wound than the rotary winding stem ordinarily employed in stem winding watches, and such resistance is sufficient before winding is completed to serve as a positive warning to the operator. This warning avoids the danger of breakage of the main spring by excessive strain after the winding is completed or nearly so.

In operating this stem mechanism for setting the watch, the crown 110 is grasped between a finger and thumb and given a slight pull outward in which case the spring aws 121 within the pendent 15 spread and permit the angular bead 119 of the stem 115 to pass above them, said jaws then resting in the groove 119 in the position shown in Fig. 7. The tension of the spring 1&0 against the slide pushes the slide shaft or stem extension 125 upward until its gear wheel 129 meshes with the gear wheel 92 of the shaft 90, a slight turn of the knob being made if necessary to bring the teeth of the gears in register. Said gear wheels being thus brought into engagement, the crown 110 is rotated in either direction as desired and motion thereby communicated through the shaft 125, crown wheel 91, gear 88 and dial train to the hands and the latter are set to the proper time marks on the dial. The setting being completed, a slight pressure on the crown 110 restores the stem to the normal position shown in Fig. 1 and in such position the parts are always in condition to effect the winding operation.

The mechanism and its details may be varied without departing from the scope of this invention.

I claim as my invention:

1. The combination of a watch case provided with a tubular pendent having guideways, a sliding knob on said pendent engaging said guideways, a watch bow carried on said knob, a crown guided in said knob, a sliding rotary stem connected with said crown and extending through said knob and pendent, a winding wheel, means connecting said stem with the winding wheel for imparting a winding action by an inward thrust of said crown, knob and stem, and adjustable connecting means between said stem and dial train for imparting a setting action thereto by a rotary motion of said stem.

2. The combination of a watch case provided with a hollow pendent, a sliding knob movable on said pendent and provided with an annular recess in its outer end, a watch how pivoted on said knob, a crown.sliding 3. The combination of a watch case provided with a hollow pendent, a sliding knob movable on said pendent and provided with an annular recess in its outer end, a watch bow pivoted on said knob, a crown sliding on said knob and provided with a flange engaging said recess, a rotary push stem connected with said crown, and means within said pendent for holding said rotary push stem in different adjusted positions.

4. The combination of a watch case provided with a hollow pendent, a sliding knob movable on said pendent and provided with an annular recess in its outer end, a watch bow pivoted on said knob, a crown sliding on said knob and provided with a flange engaging said recess, a rotary push stem connected with said crown and provided with shoulders, and a collar supported in said pendent and provided with spring gripping jaws adapted to engage said shoulders or beads on said stem.

5. The combination of a watch works, a watch case provided with a hollow pendent, a sliding rotary stem adapted to reciprocate and rotate in said pendent and provided at its outer end with a crown and at its inner end with an angular projection, a rotary sliding shaft in said case having at its outer end an angular socket engaged by said stem,

a pinion on said shaft, a slide provided with a perforated lug engaging said shaft, a pawl and ratchetmechanism connected with the winding mechanism of said works, a link connecting said slide with said pawl and ratchet mechanism, a setting train, and means for adjusting said shaft in outward position to bring said pinion in connection with said setting train.

(3. The combination of a spring actuated time mechanism, a sliding spring-returned rotary push pin, a slide engaged by said push pin, a pawl and ratchet mechanism engaging the winding arbor of said time mechanism, a link connecting said pawl and ratchet mechanism with said slide, a pinion on said push pin, a setting train, an auxiliary shaft journaled adjacent said push pin and provided with a pinion and with a crown wheel adapted to engage said setting train, and means for adjusting said push pin to bring its pinion into engagement with the pinion of the auxiliary shaft for operating the setting train.

ABRAHAM PLEAN. lVitnesses LIPPMAN SOIIONBERGEII, Josnrn PERLO.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. C. 

